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Preliminary study correlating CX3CL1/CX3CR1 expression with gastric carcinoma and gastric carcinoma perineural invasion

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World Journal of Gastroenterology 2014年第15期20卷 4428-4432页

作者： cheng-Yu Lv Tao Zhou Wei Chen Xin-dao Yin jian-Hong Yao Yi-Fan Zhang Department of General Surgery Nanjing Hospital Affiliated to Nanjing Medical University

AIM: To study the relationship between the CX3CL1 chemokine, its receptor CX3CR1, and gastric carcinoma/gastric carcinoma perineural invasion (PNI).

关键词： Gastric carcinoma Perineural invasion CX3CL1 CX3CR1

TOTAL PHOSPHORUS RELEASE FROM BOTTOM SEDIMENTS IN FLOWING WATER

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Journal of Hydrodynamics 2012年第4期24卷 589-594页

作者： ZHANG Kun cheng Peng-da ZHONG Bao-chang WANG dao-zeng Shanghai Institute of Applied Mathematics and Mechanics and Shanghai Key Laboratory of Mechanics in Energy Engineering Shanghai UniversityShanghai 200072China

In this paper, the bottom of the Dianshan Lake was selected as a test sample. The dynamic release of contaminated sediments into the overlying water column was experimentally investigated in an open water channel under different hydrodynamic conditions. The experimental results indicate that the Total Phosphorus （TP） release process can be divided into three stages： rapid release, slow release and equilibration release. In the initial release stage the measured TP concentration changes along the depth. The TP concentration near the sediment-water interface is higher than that near the water surface, but the TP concentration becomes uniform along the depth after 3 h. The dynamic release of re-suspension sediment pollutants is about 6 times higher than the static release of sediment-water interface. There are three main types of release mechanism： diffusion release, re-suspended pore water mixing release and re-suspended particles desorbing release.

关键词： Total Phosphorus (TP) concentration sediment re-suspension overlying-water release mechanism

An efficient one-pot synthesis of thiophene-fused pyrido[3,2-a]azulenes via Gewald reaction

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Chinese Chemical Letters 2014年第12期25卷 1591-1594页

作者： dao-Lin Wang jian-Ying Wu Qing-Tao Cui College of Chemistry and Chemical Engineering Liaoning Key Laboratory of Synthesis and Application of Functional CompoundBohai University

A simple and efficient procedure was developed for the synthesis of 11H（2H）-4-oxothiophene[3＇,4＇：6,5]pyrido[3,2-a]azulene-10-carboxylates（3） in moderate to good yields via the Gewald reaction of ethyl 1-cyanoacetyl-2-methoxyazulene-3-carboxylate（1） with carbonyl compounds（2） and elemental sulfur utilizing imidazole as *** reaction provides a new procedure for synthesis of pyridinone-fused azulenes.

关键词： Azulene Thiophene Pyridinone Gewald reaction

Recyclable High-performance Carbon Fiber Reinforced Epoxy Composites Based on Dithioacetal Covalent Adaptive Network

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Chinese Journal of Polymer Science 2024年第10期42卷 1514-1524,I0011页

作者： Gui-Lian Shi Ting-cheng Li dao-Hong Zhang Jun-Heng Zhang Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education&Hubei Key Laboratory of Catalysis and Materials Science Hubei R&D Center of Hyperbranched Polymers Synthesis and ApplicationsSouth-Central Minzu UniversityWuhan430074China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan430200China Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials Hubei UniversityWuhan430062Chin

Recycling of carbon fiber reinforced composites is important for sustainable development and the circular *** the use of dynamic chemistry,developing high-strength recyclable CFRPs remains a major challenge due to the mutual exclusivity between the dynamic and mechanical properties of ***,we developed a high-strength recyclable epoxy resin(HREP)based on dynamic dithioacetal covalent adaptive network using diglycidyl ether bisphenol A(DGEBA),pentaerythritol tetra(3-mercapto-propionate)(PETMP),and vanillin epoxy resin(VEPR).At high temperatures,the exchange reaction of thermally activated dithioacetals accelerated the rearrangement of the network,giving it significant reprocessing ***,HREP exhibited excellent solvent resistance due to the increased cross-linking *** this high-strength recyclable epoxy resin as the matrix and carbon fiber modified with hyperbranched ionic liquids(HBP-AMIM+PF6-)as the reinforcing agent,high performance CFRPs were successfully *** tensile strength,interfacial shear strength(IFSS)and interlaminar shear strength(ILSS)of the optimized formulation(HREP20/CF-HBPPF6)were 1016.1,70.8 and 76.0 MPa,*** addition,the CFRPs demonstrated excellent solvent and acid/*** CFRPs could completely degrade within 24 h in DMSO at 140℃,and the recycled CF still maintained the same tensile strength and ILSS as the original after multiple degradation cycles.

关键词： Epoxy resin Hyperbranched ionic liquid Recycling Carbon fiber Composites

Geodesic flow, connecting orbits and almost full foliation

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Science China Mathematics 2006年第12期49卷 1830-1838页

作者： cheng jian MENG Long Department of Mathematics Nanjing UniversityNanjing 210093China Department of MathematicsNanjing UniversityNanjing 210093China

We study in this article a special dynamical behavior of geodesic flow on *** example shows that there is an area-preserving monotone twist map for which all minimal periodic orbits can be connected,and at the same ti... 详细信息

关键词： geodesic flows,rotation numbers,minimal configurations,connecting orbits.

Genome-wide identification of target genes for transcription factor BR-C in the silkworm,Bombyx mori

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Insect Science 2021年第6期28卷 1530-1540页

作者： Meng-Pei Guo Wen-Liang Qian Xue-Chuan He jian Peng Peng Wang Wei-Na Wang Qing-You Xia dao-Jun cheng State Key Laboratory of Silkworm Genome Biology Biological Science Research CenterSouthwest UniversityChongqing400715China Chongqing Key Laboratory of Sericultural Science Southwest UniversityChongqing400715China

Transcription factor Broad Complex(BR-C)is an ecdysone primary response gene in insects and participates in the regulation of insect growth and *** this study,we performed a genome-wide identification of BR-C target genes in silkworm(Bombyx mori)using chromatin immunoprecipitation followed by high-throughput sequencing(ChIP-seq).As a result,a total of 1006 BR-C ChIP peaks were identified,and 15%of peaks were located in the promoter regions of 133 protein-coding *** annotation revealed that these ChIP peak-associated genes,as potential BR-C targets,were enriched in pathways related to biosynthetic process,metabolic process,and *** analysis and quantitative real-time polymerase chain reaction(PCR)examination revealed that developmental changes in expression patterns of a portion of potential BR-C targets,including HR96 and GC-otl,were similar to those of ***-PCR examination confirmed that BR-C could directly bind to the promoters of potential ***,dual luciferase assays demonstrated that HR96 promoter activity was significantly upregulated following BR-C overexpression,and this upregu-lation was abolished when the binding motif in the promoter was *** study will be helpful for deciphering the regulatory roles of BR-C during insect growth and development.

关键词： BR-C ChIP-seq direct binding silkworm target genes transcriptional regulation

Experimental investigation on using CO_(2)/H_(2)O emulsion with high water cut in enhanced oil recovery

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Petroleum Science 2024年第2期21卷 974-986页

作者： Xi-dao Wu Peng Xiao Bei Liu Guang-Jin Chen jian-Hua Pang State Key Laboratory of Heavy Oil Processing China University of PetroleumBeijing102249China Ocean Intelligence Technology Center Shenzhen Institute of Guangdong Ocean UniversityShenzhen518120GuangdongChina

CO_(2) emulsions used for EOR have received a lot of interest because of its good performance on CO_(2)mobility ***,most of them have been focusing on the high quality CO_(2) emulsion(high CO_(2) fraction),while CO_(2) emulsion with high water cut has been rarely *** this paper,we carried out a comprehensive experimental study of using high water cut CO_(2)/H_(2)O emulsion for enhancing oil ***,a nonionic surfactant,alkyl glycosides(APG),was selected to stabilize CO_(2)/H_(2)O emulsion,and the corresponding morphology and stability were evaluated with a transparent PVT ***,plugging capacity and apparent viscosity of CO_(2)/H_(2)O emulsion were measured systematically by a sand pack displacement apparatus connected with a 1.95-m long capillary ***,a high water cut(40 vol%) CO_(2)/H_(2)O emulsion was selected for flooding experiments in a long sand pack and a core sample,and the oil recovery,the rate of oil recovery,and the pressure gradients were *** results indicated that APG had a good performance on emulsifying and stabilizing CO_(2) *** inversion from H_(2)O/CO_(2) emulsion to CO_(2)/H_(2)O emulsion with the increase in water cut was ***_(2)/H_(2)O emulsions with lower water cuts presented higher apparent viscosity,while the optimal plugging capacity of CO_(2)/H_(2)O emulsion occurred at a certain water ***,the displacement using CO_(2)/H_(2)O emulsion provided 18.98% and 13.36% additional oil recovery than that using pure CO_(2) in long sand pack and core tests,*** work may provide guidelines for EOR using CO_(2) emulsions with high water cut.

关键词： CO_(2)/H_(2)O emulsion High water cut CO_(2) mobility control Enhanced oil recovery

Sharp Condition for Global Existence of Supercritical Nonlinear Schrodinger Equation with a Partial Confinement

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Acta Mathematicae Applicatae Sinica 2023年第1期39卷 202-210页

作者： cheng-lin WANG jian ZHANG University of Electronic Science and Technology of China Chengdu 611731China

We study the L^(2)-supercritical nonlinear Schrodinger equation(NLS) with a partial confinement,which is the limit case of the cigar-shaped model in Bose-Einstein condensate(BEC). By constructing a cross constrained variational problem and establishing the invariant manifolds of the evolution fow, we show a sharp condition for global existence.

关键词： nonlinear Schrodinger equation Bose-Einstein condensate cross-constrained variational problem global existence sharp condition

Characteristics of shell thickness in a slab continuous casting mold

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International Journal of Minerals,Metallurgy and Materials 2009年第1期16卷 25-31页

作者： Di-feng Wu Shu-sen cheng Zi-jian cheng School of Metallurgical and Ecological Engineering University of Science and Technology Beijing Beijing 100083 China Steelmaking Plant Jiuquan Iron and Steel Co. Ltd. Jiayuguan 735100 China

The key to reduce shell breakout in the continuous casting process is to control shell thickness in the mold. A numerical simulation on the turbulent flow and heat transfer coupled with solidification in the slab mold using the volume of fluid （VOF） model and the enthalpy-porosity scheme was conducted and the emphasis was put upon the flow effect on the shell thickness profiles in longitudinal and transverse directions. The results show that the jet acts a stronger impingement on the shell of narrow face, which causes a zero-increase of shell thickness in a certain range near the impingement point. The thinnest shell on the slab cross-section locates primarily in the center of the narrow face, and secondly near the comer of the wide face. Nozzle optimization can obviously increase the shell thickness and make it more uniform.

关键词： continuous casting slab mold shell thickness nozzle optimization